/* ============================================================
   TOKENS
   ============================================================ */
:root {
  --bg:             oklch(97% 0.006 240);
  --bg-2:           oklch(93% 0.008 240);
  --surface:        oklch(100% 0 0);
  --border:         oklch(88% 0.008 240);
  --text-primary:   oklch(14% 0.01 240);
  --text-secondary: oklch(42% 0.012 240);
  --text-tertiary:  oklch(62% 0.010 240);
  --accent:         oklch(48% 0.18 240);
  --accent-dim:     oklch(48% 0.18 240 / 0.07);
  --accent-glow:    oklch(48% 0.18 240 / 0.07);

  --font-display: 'Syne', sans-serif;
  --font-hero:    'Barlow Condensed', sans-serif;
  --font-body:    'Epilogue', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.333rem;
  --text-xl:   1.777rem;
  --text-2xl:  2.369rem;
  --text-3xl:  3.157rem;
  --text-4xl:  clamp(2.5rem, 6vw, 4.5rem);
  --text-hero: clamp(5rem, 14vw, 11rem);

  --space-1:  4px;  --space-2:  8px;  --space-3:  12px;
  --space-4:  16px; --space-6:  24px; --space-8:  32px;
  --space-12: 48px; --space-16: 64px; --space-24: 96px;
  --space-32: 128px;

  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-expo:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:    cubic-bezier(0.65, 0, 0.35, 1);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; }
p { text-wrap: pretty; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ============================================================
   MONO TAG
   ============================================================ */
.mono-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-right: var(--space-2);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   CURSOR GLOW
   ============================================================ */
.cursor-glow {
  position: fixed;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  top: 0; left: 0;
}

/* ============================================================
   REVEAL — clip + fade
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 800ms var(--ease-out-expo), transform 800ms var(--ease-out-expo);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal:nth-child(2) { transition-delay: 80ms; }
.reveal:nth-child(3) { transition-delay: 160ms; }
.reveal:nth-child(4) { transition-delay: 240ms; }
.reveal:nth-child(5) { transition-delay: 320ms; }

/* Section title clip reveal */
.section-title-wrap { overflow: hidden; }
.section-title {
  display: block;
  transform: translateY(100%);
  transition: transform 900ms var(--ease-out-expo);
}
.is-visible .section-title,
.section-header.is-visible .section-title { transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .cursor-glow { display: none; }
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container { width: 100%; max-width: 1120px; margin-inline: auto; padding-inline: var(--space-6); }
.section { padding-block: var(--space-32); }

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  text-transform: none;
}

.section-header { margin-bottom: var(--space-16); }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, var(--text-3xl));
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-top: var(--space-2);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: var(--space-4);
  transition: background 400ms var(--ease-out-quart), border-color 400ms;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: oklch(97% 0.006 240 / 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--border);
}
.nav__inner { max-width: 1120px; margin-inline: auto; padding-inline: var(--space-6); display: flex; align-items: center; justify-content: space-between; }
.nav__logo { font-family: var(--font-display); font-size: var(--text-base); font-weight: 800; letter-spacing: 0.06em; }
.nav__links { display: flex; gap: var(--space-8); }
.nav__links a { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--text-secondary); transition: color 200ms var(--ease-out-quart); text-transform: uppercase; }
.nav__burger { display: none; }

/* ============================================================
   BUTTON
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.02em;
  color: var(--surface); background: var(--text-primary);
  padding: var(--space-3) var(--space-6); border-radius: 100px;
  transition: transform 200ms var(--ease-out-quart), opacity 200ms;
}
.btn:hover { transform: translateY(-2px); opacity: 0.88; }
.btn:active { transform: translateY(0); }
.btn--large { font-size: var(--text-base); padding: var(--space-4) var(--space-8); }
.btn--outline { color: var(--text-primary); background: transparent; border: 1px solid var(--border); }
.btn--outline:hover { background: var(--bg-2); opacity: 1; }
.btn--light {
  color: var(--text-primary);
  background: var(--surface);
  position: relative;
  overflow: hidden;
  z-index: 0;
}
.btn--light::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: translateX(-100%);
  transition: transform 350ms var(--ease-out-expo);
  z-index: -1;
}
.btn--light:hover::before { transform: translateX(0); }
.btn--light:hover { color: var(--surface); opacity: 1; transform: none; }
.btn--tertiary {
  color: var(--text-secondary);
  background: transparent;
  padding-inline: 0;
  gap: var(--space-3);
  border-radius: 0;
}
.btn--tertiary:hover { color: var(--text-primary); transform: none; opacity: 1; }
.btn--tertiary:hover .btn-arrow { transform: translateX(4px); }
.btn-arrow { transition: transform 200ms var(--ease-out-quart); display: inline-flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding-top: 80px;
  padding-inline: var(--space-6);
  max-width: 1120px;
  margin-inline: auto;
  position: relative;
  padding-bottom: var(--space-16);
  gap: var(--space-8);
}

.hero__content { display: flex; flex-direction: column; }

.hero__status {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.06em;
  color: var(--text-secondary); background: var(--surface); border: 1px solid var(--border);
  padding: var(--space-2) var(--space-4); border-radius: 100px; margin-bottom: var(--space-6);
  width: fit-content;
}
.hero__status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: oklch(62% 0.17 145);
  box-shadow: 0 0 0 0 oklch(62% 0.17 145 / 0.4);
  animation: pulse 2.5s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 oklch(62% 0.17 145 / 0.4); }
  70%  { box-shadow: 0 0 0 7px oklch(62% 0.17 145 / 0); }
  100% { box-shadow: 0 0 0 0 oklch(62% 0.17 145 / 0); }
}

.hero__eyebrow {
  font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: var(--space-4);
}
.hero__name {
  font-family: var(--font-hero); font-size: var(--text-hero); font-weight: 800;
  line-height: 0.92; letter-spacing: 0.01em; color: var(--text-primary); margin-bottom: var(--space-8);
}
.hero__tagline {
  font-family: var(--font-body); font-size: var(--text-xl); font-weight: 300; font-style: italic;
  line-height: 1.5; color: var(--text-secondary); max-width: 36ch; margin-bottom: var(--space-8);
}
.hero__actions { display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap; }

/* Neural net visual */
.hero__visual {
  display: flex; align-items: center; justify-content: center;
  opacity: 0.7;
}
.neural-net { width: 100%; max-width: 420px; }

/* Neural net signal flow */
@keyframes signal-flow {
  0%   { stroke-dashoffset: 100; opacity: 0; }
  20%  { opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0; }
}
.nn-signal {
  stroke-dasharray: 20 80;
  stroke-dashoffset: 100;
  animation: signal-flow 2s var(--ease-in-out) infinite;
}
.nn-signal:nth-child(2) { animation-delay: 0.3s; }
.nn-signal:nth-child(3) { animation-delay: 0.6s; }
.nn-signal:nth-child(4) { animation-delay: 0.9s; }
.nn-signal:nth-child(5) { animation-delay: 1.2s; }
@keyframes nn-pulse {
  0%   { opacity: 0; transform: scale(0.5); }
  50%  { opacity: 1; transform: scale(1.8); }
  100% { opacity: 0; transform: scale(3); }
}
.pulse-dot {
  animation: nn-pulse 2.4s var(--ease-out-expo) infinite;
  transform-origin: center;
}

.hero__scroll-hint { position: absolute; bottom: var(--space-8); left: var(--space-6); }
.hero__scroll-hint span {
  display: block; width: 1px; height: 72px;
  background: linear-gradient(to bottom, var(--text-tertiary), transparent);
  animation: scroll-line 2.4s var(--ease-in-out) infinite; transform-origin: top;
}
@keyframes scroll-line {
  0%   { transform: scaleY(0); opacity: 0; }
  40%  { opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid { display: grid; grid-template-columns: 180px 1fr; gap: var(--space-16); align-items: start; }
.about__label { display: flex; flex-direction: column; gap: var(--space-1); padding-top: 6px; }

.about__profile {
  display: flex; gap: var(--space-8); align-items: flex-start;
  margin-bottom: var(--space-8);
}
.about__avatar {
  flex-shrink: 0;
  width: 80px; height: 80px; border-radius: 50%;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg-2);
  display: flex; align-items: center; justify-content: center;
}
.about__avatar-placeholder {
  font-family: var(--font-display); font-size: var(--text-lg); font-weight: 800;
  color: var(--text-tertiary); letter-spacing: 0.04em;
}
.about__avatar img { width: 100%; height: 100%; object-fit: cover; }
.about__now {
  flex: 1;
  padding: var(--space-4) var(--space-6);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--space-3);
}
.about__now .mono-tag { display: block; margin-bottom: var(--space-2); }
.about__now p { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.7; max-width: none; }
.about__lead { font-size: var(--text-xl); font-weight: 300; line-height: 1.5; color: var(--text-primary); max-width: 58ch; margin-bottom: var(--space-6); }
.about__text { font-size: var(--text-base); color: var(--text-secondary); max-width: 58ch; margin-bottom: var(--space-12); line-height: 1.8; }
.about__stats { display: flex; gap: var(--space-12); }

.stat__num {
  display: block; font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 700;
  letter-spacing: -0.03em; color: var(--text-primary); line-height: 1; margin-bottom: var(--space-1);
}
.stat__num::after { content: '+'; }
.stat__num--inf::after { content: ''; }
.stat__num--pct::after { content: '%'; }
.stat__label { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-tertiary); letter-spacing: 0.08em; text-transform: uppercase; }

/* ============================================================
   EXPERIENCE
   ============================================================ */
.experience__list { display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.exp-item {
  display: grid; grid-template-columns: 180px 1fr; gap: var(--space-8);
  padding-block: var(--space-12); padding-inline: var(--space-4);
  border-bottom: 1px solid var(--border); border-radius: var(--space-2);
  margin-inline: calc(var(--space-4) * -1);
  transition: background 300ms var(--ease-out-quart);
  position: relative;
}
.exp-item::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 400ms var(--ease-out-expo);
  border-radius: 2px;
}
.exp-item:hover::before { transform: scaleY(1); }
.exp-item:hover { background: var(--accent-dim); }
.exp-item__left { display: flex; flex-direction: column; gap: var(--space-2); padding-top: 4px; }
.exp-item__period { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; color: var(--text-tertiary); letter-spacing: 0.06em; font-variant-numeric: tabular-nums; }
.exp-item__type { font-family: var(--font-mono); font-size: 10px; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; }
.exp-item__header { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.exp-item__company {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  line-height: 1.2;
}
.exp-item__role {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  font-style: italic;
  color: var(--text-secondary);
  letter-spacing: 0;
}
.exp-item__desc { font-size: var(--text-base); color: var(--text-secondary); line-height: 1.75; max-width: 65ch; margin-bottom: var(--space-6); }
.exp-item__highlight {
  font-weight: 600; font-style: normal;
  color: var(--text-primary);
  border-bottom: 1.5px solid var(--accent);
  padding-bottom: 1px;
}
.exp-item__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.exp-item__tags span { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; color: var(--text-tertiary); background: var(--bg-2); padding: var(--space-1) var(--space-3); border-radius: 100px; border: 1px solid var(--border); }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects__list { display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.project-card {
  display: grid;
  grid-template-columns: 56px 1fr 120px 44px;
  align-items: center;
  gap: var(--space-8);
  padding-block: var(--space-12); padding-inline: var(--space-4);
  border-bottom: 1px solid var(--border); border-radius: var(--space-2);
  margin-inline: calc(var(--space-4) * -1);
  cursor: pointer;
  transition: background 300ms var(--ease-out-quart);
}
.project-card:hover, .project-card:focus-visible { background: var(--accent-dim); outline: none; }

.project-card__index { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; color: var(--text-tertiary); letter-spacing: 0.1em; align-self: start; padding-top: 4px; font-variant-numeric: tabular-nums; }
.project-card__body { display: flex; flex-direction: column; gap: var(--space-3); }
.project-card__top { display: flex; flex-direction: column; gap: var(--space-2); }
.project-card__tag { font-family: var(--font-mono); font-size: 10px; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; }
.project-card__title { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.project-card__desc { font-size: var(--text-base); color: var(--text-secondary); max-width: 65ch; line-height: 1.7; }
.project-card__stack { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.project-card__stack span { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; color: var(--text-tertiary); background: var(--bg-2); padding: var(--space-1) var(--space-3); border-radius: 100px; border: 1px solid var(--border); }

.project-card__visual { opacity: 0.55; transition: opacity 300ms var(--ease-out-quart); width: 80px; height: 80px; flex-shrink: 0; }
.project-card:hover .project-card__visual { opacity: 0.9; }

.project-card__link {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  color: var(--text-tertiary); border: 1px solid var(--border); flex-shrink: 0;
  transition: color 200ms, transform 200ms var(--ease-out-quart), border-color 200ms;
}
.project-card:hover .project-card__link, .project-card:focus-visible .project-card__link {
  color: var(--accent); border-color: var(--accent); transform: translateX(4px);
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-12) var(--space-8); }

.skills__legend {
  display: flex; gap: var(--space-6); margin-bottom: var(--space-12);
  font-family: var(--font-mono); font-size: 10px; color: var(--text-tertiary);
  letter-spacing: 0.06em;
}
.skills__legend span { display: flex; align-items: center; gap: var(--space-2); }
.skills__legend span::before {
  content: ''; display: block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--border);
}
.skills__legend .leg--core::before { background: var(--accent); }
.skills__legend .leg--mid::before { background: var(--text-tertiary); }

.skill-group__title { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-primary); margin-bottom: var(--space-6); padding-bottom: var(--space-3); border-bottom: 1px solid var(--border); }
.skill-group__list li {
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--text-base); color: var(--text-secondary);
  padding-block: var(--space-2); line-height: 1.5; cursor: default;
  transition: color 150ms var(--ease-out-quart), transform 200ms var(--ease-out-quart);
}
.skill-group__list li::before {
  content: ''; flex-shrink: 0; width: 6px; height: 6px; border-radius: 50%;
  background: var(--border);
  transition: background 200ms, transform 250ms var(--ease-out-expo);
}
.skill-group__list li.skill--core::before { background: var(--accent); }
.skill-group__list li.skill--familiar { color: var(--text-tertiary); }
.skill-group__list li:hover { color: var(--text-primary); transform: translateX(8px); }
.skill-group__list li:hover::before { transform: scale(1.6); }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(440px, 1fr)); gap: var(--space-8); }
.testimonial {
  padding: var(--space-8);
  border: 1px solid var(--border);
  border-radius: var(--space-3);
  background: var(--surface);
  transition: border-color 300ms var(--ease-out-quart), box-shadow 300ms var(--ease-out-quart);
}
.testimonial:hover {
  border-color: oklch(48% 0.18 240 / 0.3);
  box-shadow: 0 4px 24px oklch(48% 0.18 240 / 0.06);
}
.testimonial__quote {
  font-size: var(--text-base); font-style: italic; font-weight: 300;
  color: var(--text-secondary); line-height: 1.8; margin-bottom: var(--space-6);
  text-wrap: pretty;
}
.testimonial__quote::before { content: '\201C'; }
.testimonial__quote::after  { content: '\201D'; }
.testimonial__footer { display: flex; align-items: center; gap: var(--space-4); }
.testimonial__avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: var(--text-xs); font-weight: 700;
  color: var(--text-tertiary); flex-shrink: 0;
}
.testimonial__name { display: block; font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; font-style: normal; }
.testimonial__role { font-family: var(--font-mono); font-size: 10px; color: var(--text-tertiary); letter-spacing: 0.04em; }

/* ============================================================
   CONTACT — dark block
   ============================================================ */
.contact {
  background: var(--text-primary);
  padding-block: var(--space-32);
}
.contact .section-label { color: var(--bg); }
.contact .section-num { color: oklch(62% 0.010 240); }
.contact__inner { max-width: 720px; }
.contact__title {
  font-family: var(--font-hero); font-size: var(--text-4xl); font-weight: 800;
  line-height: 1.0; color: var(--bg); margin-block: var(--space-6);
}
.contact__sub { font-size: var(--text-lg); font-weight: 300; color: oklch(65% 0.010 240); margin-bottom: var(--space-12); max-width: 50ch; line-height: 1.6; }
.contact__links { display: flex; gap: var(--space-8); margin-top: var(--space-8); }
.contact__links a {
  font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 500;
  color: oklch(65% 0.010 240); letter-spacing: 0.06em; position: relative;
  transition: color 200ms var(--ease-out-quart);
}
.contact__links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 1px; background: var(--bg); transform: scaleX(0); transform-origin: left;
  transition: transform 250ms var(--ease-out-quart);
}
.contact__links a:hover { color: var(--bg); }
.contact__links a:hover::after { transform: scaleX(1); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { position: relative; overflow: hidden; padding-block: var(--space-8); border-top: 1px solid var(--border); }
.footer__mega {
  position: absolute; bottom: -0.15em; left: 50%; transform: translateX(-50%);
  font-family: var(--font-hero); font-size: clamp(4rem, 18vw, 14rem); font-weight: 800;
  color: transparent; -webkit-text-stroke: 1px var(--border);
  white-space: nowrap; pointer-events: none; user-select: none; letter-spacing: -0.02em;
  line-height: 1;
}
.footer__inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; padding-block: var(--space-8); }
.footer__inner p { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-tertiary); letter-spacing: 0.06em; }
.footer__back { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500; color: var(--text-tertiary); letter-spacing: 0.08em; text-transform: uppercase; transition: color 200ms var(--ease-out-quart); }
.footer__back:hover { color: var(--text-primary); }

/* ============================================================
   DARK MODE
   ============================================================ */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:             oklch(10% 0.008 240);
    --bg-2:           oklch(14% 0.010 240);
    --surface:        oklch(16% 0.012 240);
    --border:         oklch(24% 0.014 240);
    --text-primary:   oklch(95% 0.004 240);
    --text-secondary: oklch(65% 0.008 240);
    --text-tertiary:  oklch(45% 0.008 240);
    --accent:         oklch(68% 0.18 240);
    --accent-dim:     oklch(68% 0.18 240 / 0.08);
    --accent-glow:    oklch(68% 0.18 240 / 0.10);
  }
  .nav.scrolled {
    background: oklch(10% 0.008 240 / 0.88);
  }
  .contact {
    background: oklch(6% 0.006 240);
  }
  .contact__title { color: var(--text-primary); }
  .contact__sub { color: var(--text-secondary); }
  .contact .section-label { color: var(--accent); }
  .contact .mono-tag { color: var(--text-tertiary); }
  .contact__links a { color: var(--text-secondary); }
  .contact__links a::after { background: var(--text-primary); }
  .contact__links a:hover { color: var(--text-primary); }
  .btn--light { background: var(--surface); color: var(--text-primary); }
}
   ============================================================ */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: oklch(97% 0.006 240 / 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    z-index: 99;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { font-size: var(--text-lg); letter-spacing: 0.1em; }
  .nav__burger {
    display: flex; flex-direction: column; justify-content: center;
    gap: 5px; width: 32px; height: 32px;
    background: none; border: none; cursor: pointer;
    z-index: 101; position: relative;
  }
  .nav__burger span {
    display: block; width: 22px; height: 1.5px;
    background: var(--text-primary);
    transition: transform 300ms var(--ease-out-expo), opacity 200ms;
    transform-origin: center;
  }
  .nav__burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav__burger.is-open span:nth-child(2) { opacity: 0; }
  .nav__burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
  .hero { grid-template-columns: 1fr; padding-top: 100px; }
  .hero__visual { display: none; }
  .hero__scroll-hint { display: none; }
  .exp-item { grid-template-columns: 1fr; gap: var(--space-3); }
  .exp-item__left { flex-direction: row; align-items: center; gap: var(--space-4); }
  .about__grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .testimonials__grid { grid-template-columns: 1fr; }
  .project-card {
    grid-template-columns: 1fr 44px;
    gap: var(--space-4);
    align-items: start;
  }
  .project-card__index, .project-card__visual { display: none; }
  .project-card__link { align-self: start; margin-top: 4px; }
  .section { padding-block: var(--space-16); }
  .footer__mega { font-size: 20vw; }
}
@media (max-width: 480px) {
  .about__stats { flex-direction: column; gap: var(--space-6); }
  .contact__links { flex-direction: column; gap: var(--space-4); }
}